1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=SSE
3; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX
4
5; Ensure we match legal min/max intrinsics and the expanded compare+select equivalents.
6
7declare <4 x i32> @llvm.smax.v4i32(<4 x i32>, <4 x i32>)
8
9define <4 x i32> @PR27924_cmpeq(<4 x i32> %a, <4 x i32> %b) {
10; SSE-LABEL: PR27924_cmpeq:
11; SSE:       # %bb.0:
12; SSE-NEXT:    pcmpeqd %xmm0, %xmm0
13; SSE-NEXT:    retq
14;
15; AVX-LABEL: PR27924_cmpeq:
16; AVX:       # %bb.0:
17; AVX-NEXT:    vpcmpeqd %xmm0, %xmm0, %xmm0
18; AVX-NEXT:    retq
19  %cmp = icmp sgt <4 x i32> %a, %b
20  %max = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> %b
21  %sse_max = tail call <4 x i32> @llvm.smax.v4i32(<4 x i32> %a, <4 x i32> %b)
22  %truth = icmp eq <4 x i32> %max, %sse_max
23  %ret = sext <4 x i1> %truth to <4 x i32>
24  ret <4 x i32> %ret
25}
26
27define <4 x i32> @PR27924_cmpgt(<4 x i32> %a, <4 x i32> %b) {
28; SSE-LABEL: PR27924_cmpgt:
29; SSE:       # %bb.0:
30; SSE-NEXT:    xorps %xmm0, %xmm0
31; SSE-NEXT:    retq
32;
33; AVX-LABEL: PR27924_cmpgt:
34; AVX:       # %bb.0:
35; AVX-NEXT:    vxorps %xmm0, %xmm0, %xmm0
36; AVX-NEXT:    retq
37  %cmp = icmp sgt <4 x i32> %a, %b
38  %max = select <4 x i1> %cmp, <4 x i32> %a, <4 x i32> %b
39  %sse_max = tail call <4 x i32> @llvm.smax.v4i32(<4 x i32> %a, <4 x i32> %b)
40  %untruth = icmp sgt <4 x i32> %max, %sse_max
41  %ret = sext <4 x i1> %untruth to <4 x i32>
42  ret <4 x i32> %ret
43}
44